Notes:
This is not an example of Ektachrome. However, this slide interests me because it was taken in available light. I don’t know what speed film he used, but I doubt it was very high. Unfortunately, today, the fastest slide film is ISO 100. Fujifilm Provia is supposed to have some flexibility. If it is underexposed, I’ve read it won’t get grainy, and the skin tones won’t shift toward red. If all else fails, ISO 400 black and white film stock should work.